Load GridView with TemplateFields and controls like TextBox and DropDown on Scroll using jQuery AJAX in ASP.Net

Hi! I read your article on loading data in GridView while scrolling down in ASPNet using jQuery-Ajax. I wanted to ask that if we are using 3-layered architecture i.e. Page Level then Business Logic Layer and then Data Access Layer then will it be a performance issue to load data as and when user scrolls down? 

Secondly, I dont use bound fields in my GridView. I use labels and textboxes/DropDowns/CheckBoxes for it. Can you plz write a code snippet for that too ?

Thanks.

Anshul Parmar